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3ME4: MANUFACTURING PROCESSES
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| 3L+0T |
MM:100 |
Ex Hrs:3 |
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Unit-1 Importance of manufacturing, economic and technological definition of manufacturing, survey of manufacturing processes. Foundry Technology: Patterns practices: Types of patterns, allowances and material used for patterns, moulding sands, testing: grain fineness; moisture content, clay content and permeability test, core materials and core making, core print; core boxes, chaplets, gating system design. Moulding practices: Green, dry and loam sand moulding, pit and floor moulding; shell moulding; permanent moulding; carbon dioxide moulding.
Casting practices: Fundamental of metal casting, sand casting, Shell-Mould casting, mold casting (plaster and ceramic), investment casting, Permanent mould casting, slush casting, pressure casting, die casting, centrifugal casting, continuous casting, squeeze casting, casting alloys, casting defects, design of casting, gating system design, and riser design. Melting furnaces-rotary, pit electric, tilting and cupola.
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Unit-2 Metal Joining Processes: Principle of welding, soldering, brazing and adhesive bonding. Survey of welding and allied processes. Arc welding : power sources and consumables. Spot. projection and seam welding process. Atomic hydrogen, ultrasonic, plasma and laser beam welding, electron beam welding, and special welding processes e.g. TIG, MIG, Friction and explosive welding, welding of C.I and AI, welding defects. Electrodes and Electrode Coatings.
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Unit-3 Forming and Shaping Processes: Metal working, elastic plastic deformation, concept of strain hardening, hot and cold working, rolling, principle and operation, roll pass sequence, forging, forging operations, extrusion, wire and tube drawing processes, Forging: Method of forging, forging operations, extrusion, , wire and tube drawing processes. Forging: Method of forging, forging hammers and presses, principle of forging tool design, cold working processes-Shearing, drawing, squeezing, blanking, piercing, deep drawing, coining and embossing defects, cold heading, riveting, thread rolling bending and forming operation.
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Unit-4 Powder Metallurgy: Powder manufacturing, mechanical pulverization, sintering, Electrolytic Process, chemical reduction, atomization, properties of metal powders, compacting of powders sintering, advantages and application of P/M. Rapid Prototyping Operations: Introduction, subtractive processes, additive processes, Virtual Prototyping and applications.
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Unit-5 Plastic Technology: Introduction, Classification of Plastics, Ingredients of Moulding compounds, General Properties of Plastic, Plastic part manufacturing processes such as compression moulding, transfer moulding, injection moulding, extrusion moulding, blow moulding, calendaring, thermoforming, slush moulding, laminating
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